1. Part I: a new hose

2. Electronegativity Ability to attract e- in a chemical bond ( more to come on this, as it is THAT exciting!) * Increases to the RIGHT, and UP on the periodic table Francium is least e- neg. 0.7 F is most e- neg. 4.0

3. Ionization energy! Ionization energy describes the energy required to remove an electron from a gaseous atom*. KJ/mol * we can talk about 1 st, 2 nd, 3 rd, etc. ionization energies… as it is very exciting! Aluminum: 1 st I.E. 577.9 2 nd 1,820, 3 rd 2,750 4 th * 11,600…. Magnesium 1 st 738.1, 2 nd 1,450, 3 rd * 7,730 4 th ** 10,500 Sodium 1 st 495.9 2 nd 4,560, 3 rd * 6,900 4 th 9,540

4. Trend in 1 st I.E. : Increases to the RIGHT and UP!

5. Atomic Radius Half the distance between two nuclei in a big Ole Chunk of metal Atomic Radius Increases DOWN and to the LEFT Sodium is bigger than Lithium However…. Sodium is also bigger than Magnesium ( Which is “bigger”!) (( what???)) ((( Na-23 vs Mg-24))) Lets draw us a pitcher!... Ummm… ok….

6. Ionic Radius! Even more fascinating! Ionic Radius is the radius of an ion ( cations, and anions) So… spose we got some Sodium… What’s its e- config., or LDS ? Right!!!! 3S 1, Na one dot! So what will happen to the size of Na when it becomes Na +1 ? Right again! It gets smaller!

7. And if you are thinking to yourself… (“Cowabunga!!!!) Well… Good Thinking! Sodium ions are almost ½ the size of sodium atoms! (98 vs 186 pm)… The trend is mostly still the same.. Increases DOWN and to the LEFT Cations ( Metals) get smaller than their atom, while Anions ( Non-metals) get larger. Insert fascinating drawing here 

8. Groups / Families (Vertical) Columns are similar in their properties such as valence, e- config., charge Many have tasty and delicious names… Alkali Metals, Alkaline Earth Metals Transition Metals ( Inner T.M.) Noble gases Halogens The Williamsons…

9. Period (Horizontal) Rows across the periodic table Properties can vary greatly within a Period, Being metal(-like) on the left to gaseous on the right

10. Metals Properties: *Hard solids Shiny Malleable / malleability- Ductile / ductility – Good Conductor of heat and electricity Valence? ( < 4) Charge? +1,2,3

11. Metalloids Sometimes will have metal-like properties, sometimes… non metal –like properties Silicon for example!

12. Non-Metals Brittle solids Gases ( Bromine is a liquid) Dull in color Good insulators Valence? (>3) Charge? -1,2,3